Proteins
Enzymes are proteins that can lower activation energy of reactions in the body (I think).
Huh? I’m confused with this
224 chromosomes on the wing cell
Infertility is the incapacity to conceive an offspring while erectile dysfunction is the incapacity to get aroused so as to engage in sexual intercourse (mostly in men).
Erectile dysfunction could be caused by stress, cardiovascular diseases, and diabetes. Therefore treating it requires maintaining a healthy lifestyle of nutrition and exercise.
Infertility can be caused by disorders of reproductive organs such as endometriosis and occlusion in the tubes. This can be treated by assisted reproduction (IVF), corrective surgery and education.
Answer:
B) I and II
Explanation:
Male reproductive system produce gametes in the testis which is the part of male reproductive system. Testis are two in number normally which compose of seminiferous tubules which have spermatogenic cell which are responsible for the production of spermatids with the help of sertoli cells present in the seminiferous tubules.After production of gametes the spermatid are delivered to the female reproductive system by copulating organ which in human is penis.the sperm 1st produces in the semeniferus tubules then transfer in to the rate testies ,epidydemis then vas deference and then urethra and then outside the body.
